package example;
//质数PrimeNumber
//用boolean打标记
public class PrimeNumber {
    public static void main(String[] args) {
//        int num = 9;
        for (int num = 2;num<=100;num++){
            boolean flag = true;//假设是素数
            for (int i = 2;i<num/2;i++){
                if(num%i==0){
                    flag = false;
                    break;
                }
            }
            if(flag){
                System.out.print(num+"\t");
            }
        }

    }
}
